Clamp



H. R. MOKLER."

CLAMP.

APPLlCATlON FILED OCT. 21, 1920.

41 403 30 Patented Jan. 17, 1922.

I a INVENTOR H. R Mahler;

,4 TI'ORNEYS WITNESSES HERBERT B. MOKLER, OF BRADFORD, ILLINOIS.

CLAMP.

Specification of Letters Patent.

Patented Jan. 17, 1922.

Application filed October 27, 1920. Serial No. 420,048.

To all whom it may concern.

Be it known that I, HERBERT R. Momma, a citizen of the United States,and a resident of Bradford, in the county of Stark and State ofIllinois, have invented certain new and useful Improvements in Clamps,of which the following is a specification.

My invention is an improvement in clamps, and has for its object toprovide a device of the character specified, especially designed forholding objects to be ground or polished of irregular form, such, forinstance, as plowshares, cultivator shovels, tower knives, harrowblades, planter knives, and the like, wherein there is provided a bodymember having a pair of fixed stops or abutments spaced apart from eachother, and having a clamp movable between the abutments and providedwith means for clamping the article between the clamp and the bodymember.

In the drawings,

Figure 1 is a perspective View of the improved clamp,

Figure 2 is a top plan view,

Figure 3 is a front view,

Figure 4 is a section on the line H of Figure 3,

Figure 5 is a perspective view of the clamping lever.

In the present embodiment of the invention, a body member is provided,in the form of a plate 1, having secured transversely of one end thereofan abutment 2, in the form of a block, and having secured transverselythereof near the other end a second abutment 3, in the form of a block.The plate 1, and the blocks 2 and 3 may be of wood or other suitablematerial, and beyond the abutment 3, the plate is reduced to form ahandle 4, for convenience in handling the clamp as a whole. Theabutments 2 and 3 are secured to the plate by means of screws 5, 4:screws being used to connect the block 2, while 2 screws are used toconnect the block 3.

The clamping member, which is adjustable longitudinally of the platebetween the abutments, is in the form of a yoke comprising a body 6,which is arranged transversely of the plate, and arms 7 extendinglaterally from the body on opposite sides of the plate and upwardlyabove the level of the tops of the abutments, and these arms arethreaded, as shown.

The yoke is clamped to the plate by means of a clamping plate 8, whichis arranged transversely of the plate above the same, and has openingstoreceive the arms 7. Nuts 9 are threaded on to the arms above the plate8, and it will be evident that by turning the nuts in the properdirection, the plate 8 may be clamped on the plate 1 to firmly clamp theyoke to the said plate. This plate 8, as shown more particularly inFigure 2, is approximately diamond-shaped, being of greatest width atits center and gradually decreasing in width toward each end.

The elements just described, namely, the yoke'of the plate 8, constitutewhat is in effect the fixed jaw of the clamp. The mov able jaw isconstituted by a lever 10, which is hinged to a nut 11, adjustable onone of the arms 7, and this lever has intermediate its ends a notch 12for receiving the other arm. A handled nut 13 is threaded on to the saidother arm of the yoke, to engage above the lever 10, to hold the saidlever in adjusted position. The nut 11, which is rectangular incross-section, has the opening for the arm 7 at one end. The other endis received between the arms 14 of a fork on the lever, and a bolt 15 ispassed through registering openings in the arms and in the nut, and isengaged by a nut to pivotally connect the lever to the nut 11.

Referring to Figures 1, 2 and 4, it will be seen that the abutment 2has, in the upper face thereof, and at that edge adjacent to theabutment 3, a notch or recess 15. This notch, or recess, is inclinedwith respect to the long axis of the plate 1. The corners of the notch12 of the handle 10 are beveled to facilitate the engagement of thelever beneath the nut 13.

In operation, when it is desired to clamp a plow, for instance, the plowis placed in the clamp between the abutments 2 and 3. It is clamped tothe plate by means of the handle, the nuts 11 and 13 being adjusted toobtain the proper pressure to hold the same firmly. Now the operatorgrasps the end of the lever 10 and that arm 7 of the element 67 which isremote from the grip portion of the lever, and applies his knee againstthe other end of the plate 1. He may thus hold the plow, or otherarticle firmlv against the stone, to grind or polish the plow withoutplacing his hands near the point of danger, and without any possibilityof being burned by the heating of the plow. Because of the fact that avery great pressure Vmerely grasping the article to be polished orground.

I claim 1. A device of the character specified, comprising a body memberhaving at one end a handle, a pair ofabutments secured to the body inspaced relation, and a clamp between the said members for clamping thearticle'to be handled, said clamp being adjustable bet-weenqtheabutments, the clamp comprising a yoke consisting of a body extendingtransversely of the body member, andarms extending upwardly alongsidethereof, a plate adjustably connected with the arms above the bodymember, a nut threaded on to each arm, and a lever pivoted to one nutand having a notch for receiving the other arm beneath the other nut.

2. A device of the character specified, comprising a body member havingat one end a handle, a pair of abutmentssecured to the body in spacedrelation, and a clamp between the said members for clamping the articleto be handled, said clamp being adjustable between the abutments.

3. A device of the character specified comprising a body member, a pairof abutable with the work and means for adjusting said lever, and meansfor securing the clamp in adjusted position on the body member.

4. A device of the character described comprising a body member, a pairof abutments carried by the body member in spaced relation'and adaptedto support the Work, a clamp movably mounted on the body member andincluding a yoke, lever directly engageable with the work, and means foradjustably positioning the lever on the yoke, and means for securingsaid clamp in adjusted position on the body member.

A device of the character described comprising a body member, a pair ofabutments carried by the body member and adapted to support the work,a'clamp movably mounted on the body member and including a fixedelement, a relatively movable work engaging element, and means for adjustably securing the work engaging element on the fixed element of theclamp, and means for securing said clamp in adjustedposition on saidbody member. v

HERBERT R; MOKLER.

